[Bug 1869672] Re: Kdump broken since 4.15.0-65 on secureboot - purgatory cannot load
Guilherme, I've confirmed the kdump works correctly! yam@ubuntu18:~$ sudo systemctl status kdump-tools ● kdump-tools.service - Kernel crash dump capture service Loaded: loaded (/lib/systemd/system/kdump-tools.service; enabled; vendor preset: enabled) Active: active (exited) since Thu 2020-05-28 01:10:15 UTC; 5min ago Process: 540 ExecStart=/etc/init.d/kdump-tools start (code=exited, status=0/SUCCESS) Main PID: 540 (code=exited, status=0/SUCCESS) May 28 01:10:12 ubuntu18 systemd[1]: Starting Kernel crash dump capture service... May 28 01:10:13 ubuntu18 kdump-tools[540]: Starting kdump-tools: * Creating symlink /var/lib/kdump/vmlinuz May 28 01:10:13 ubuntu18 kdump-tools[540]: * Creating symlink /var/lib/kdump/initrd.img May 28 01:10:15 ubuntu18 kdump-tools[540]: * loaded kdump kernel May 28 01:10:15 ubuntu18 kdump-tools[764]: loaded kdump kernel May 28 01:10:15 ubuntu18 systemd[1]: Started Kernel crash dump capture service. yam@ubuntu18:~$ uname -a Linux ubuntu18 4.15.0-102-generic #103-Ubuntu SMP Fri May 15 15:22:18 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux yam@ubuntu18:~$ sudo lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description:Ubuntu 18.04.4 LTS Release:18.04 Codename: bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: Kdump broken since 4.15.0-65 on secureboot - purgatory cannot load To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] Re: Kdump broken since 4.15.0-65 on secureboot - purgatory cannot load
Guilherme, Sorry for late response, and I haven’t tried it. I’ll try it tomorrow and reply soon. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: Kdump broken since 4.15.0-65 on secureboot - purgatory cannot load To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] Re: Kdump broken since 4.15.0-65 on secureboot - purgatory cannot load
Guilherme, Thanks. I'm looking forward to release the kernel! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: Kdump broken since 4.15.0-65 on secureboot - purgatory cannot load To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] Re: Kdump broken since 4.15.0-65 on secureboot - purgatory cannot load
Guilherme, Sure. Do you know when the kernel will be released? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: Kdump broken since 4.15.0-65 on secureboot - purgatory cannot load To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] Re: Kdump broken since 4.15.0-65 on secureboot - purgatory cannot load
Guilherme, I tried to use your kernel, and it works! Now I send you outputs you requested: $ uname -a Linux bntutest97 4.15.0-97-generic #98+TEST000v20200423b3-Ubuntu SMP Thu Apr 23 22:20:18 UTC 20 x86_64 x86_64 x86_64 GNU/Linux $ sudo kdump-config show udo kdump-config show DUMP_MODE:kdump USE_KDUMP:1 KDUMP_SYSCTL: kernel.panic_on_oops=1 KDUMP_COREDIR:/var/crash crashkernel addr: 0x2c00 /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinuz-4.15.0-97-generic kdump initrd: /var/lib/kdump/initrd.img: symbolic link to /var/lib/kdump/initrd.img-4.15.0-97-generic current state:ready to kdump kexec command: /sbin/kexec -p -s --command-line="BOOT_IMAGE=/boot/vmlinuz-4.15.0-97-generic root=UUID=cddaa45a-b277-465f-9410-3633976f020c ro reset_devices systemd.unit=kdump-tools-dump.service nr_cpus=1 irqpoll nousb ata_piix.prefer_ms_hyperv=0" --initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: Kdump broken since 4.15.0-65 on secureboot - purgatory cannot load To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] Re: kdump kernel can't be loaded using kernel 4.15.0-76
Excellent! Of course I'll try your kernel. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: kdump kernel can't be loaded using kernel 4.15.0-76 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] Re: kdump kernel can't be loaded using kernel 4.15.0-76
Guilherme, I'm so glad to hear it. Thanks a lot for your effort! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: kdump kernel can't be loaded using kernel 4.15.0-76 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] Re: kdump kernel can't be loaded using kernel 4.15.0-76
Guilherme, Thank you for your support. Please feel free to tell me what I can do. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: kdump kernel can't be loaded using kernel 4.15.0-76 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] Re: kdump kernel can't be loaded using kernel 4.15.0-76
First, I'll send sosreport on kernel 4.15.0-64. ** Attachment added: "sosreport on kernel 4.15.0-64." https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1869672/+attachment/5348454/+files/sosreport-advanced-kdumpon64-2020-04-07-mhgdfqe.tar.xz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: kdump kernel can't be loaded using kernel 4.15.0-76 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] Re: kdump kernel can't be loaded using kernel 4.15.0-76
I'll send the sosreport on kernel 4.15.0-76. ** Attachment added: "sosreport on kernel 4.15.0-76" https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1869672/+attachment/5348455/+files/sosreport-advanced-kdumpon76-2020-04-07-jyfwofm.tar.xz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: kdump kernel can't be loaded using kernel 4.15.0-76 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] Re: kdump kernel can't be loaded using kernel 4.15.0-76
Hi Guilherme, Sure. I'll send my sosreport later. However, I believe this problem is not related with my hardware because this problem also occurs 3 different machines. * Advantec EPC-U2117 * Virtual Machine on VMware ESXi * UPS-APLX7-A20-0464 I write the procedure to find this problem. 1. Install 'Ubuntu server 18.04'. 2. Install 'kdump-tools' $ sudo apt install kdump-tools 3. create key and import after rebooting, the kdump kernel will enable when the secureboot is disabled. However, the kdump kernel will blocked regardless of the version of kernel. So I need to run these commands according to this. https://bugs.launchpad.net/ubuntu/+source/shim-signed/+bug/1840941 $ sudo openssl x509 -outform der -in /etc/ssl/certs/ca-certificates.crt -out new-ca.der $ sudo mokutil --import new-ca.der Inputing password will be required. 4. Reboot After rebooting, MOK management interface will be shown. Type Enter and select Enroll MOK > Yes, then input the password, then reboot 5. Check whether kdump-tools works or not. $ sudo systemctl status kdump-tools Using kernel 4.15.0-64: ● kdump-tools.service - Kernel crash dump capture service Loaded: loaded (/lib/systemd/system/kdump-tools.service; enabled; vendor preset: enabled) Active: active (exited) since Tue 2020-04-07 17:38:53 UTC; 41s ago Process: 878 ExecStart=/etc/init.d/kdump-tools start (code=exited, status=0/SUCCESS) Main PID: 878 (code=exited, status=0/SUCCESS) Apr 07 17:38:51 advanced systemd[1]: Starting Kernel crash dump capture service... Apr 07 17:38:52 advanced kdump-tools[878]: Starting kdump-tools: * Creating symlink /var/lib/kdump/vmlinuz Apr 07 17:38:52 advanced kdump-tools[878]: * Creating symlink /var/lib/kdump/initrd.img Apr 07 17:38:52 advanced kdump-tools[878]: * loaded kdump kernel Apr 07 17:38:52 advanced kdump-tools[1029]: loaded kdump kernel Apr 07 17:38:53 advanced systemd[1]: Started Kernel crash dump capture service. Using kernel 4.15.0-76: ● kdump-tools.service - Kernel crash dump capture service Loaded: loaded (/lib/systemd/system/kdump-tools.service; enabled; vendor preset: enabled) Active: active (exited) since Tue 2020-04-07 16:59:01 UTC; 25min ago Main PID: 889 (code=exited, status=0/SUCCESS) Tasks: 0 (limit: 4915) CGroup: /system.slice/kdump-tools.service Apr 07 16:58:42 advanced systemd[1]: Starting Kernel crash dump capture service... Apr 07 16:58:43 advanced kdump-tools[889]: Starting kdump-tools: * Creating symlink /var/lib/kdump/vmlinuz Apr 07 16:58:43 advanced kdump-tools[889]: kdump-tools: Generating /var/lib/kdump/initrd.img-4.15.0-76-lowlatency Apr 07 16:59:01 advanced kdump-tools[889]: * Creating symlink /var/lib/kdump/initrd.img Apr 07 16:59:01 advanced kdump-tools[889]: kexec_file_load failed: Exec format error Apr 07 16:59:01 advanced kdump-tools[889]: * failed to load kdump kernel Apr 07 16:59:01 advanced systemd[1]: Started Kernel crash dump capture service. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: kdump kernel can't be loaded using kernel 4.15.0-76 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] Re: kdump kernel can't be loaded using kernel 4.15.0-76
By the way, I found the new kernel 4.15.0-96 is available. I also tried, but the problem won't be fixed 4.15.0-45 -> OK 4.15.0-64 -> OK * 4.15.0-65 -> NG * 4.15.0-66 -> NG * 4.15.0-69 -> NG * 4.15.0-70 -> NG * 4.15.0-72 -> NG * 4.15.0-74 -> NG 4.15.0-76 -> NG 4.15.0-88 -> NG 4.15.0-91 -> NG ** 4.15.0-96 -> NG 4.18.0-15 -> OK -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: kdump kernel can't be loaded using kernel 4.15.0-76 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] Re: kdump kernel can't be loaded using kernel 4.15.0-76
Guilherme, > can you test the in-between kernel versions, so we can narrow down when the problem was introduced? Of course! I have tesed each kernels. Please check the result. It seems that the problem occurs from 4.15.0-65. 4.15.0-45 -> OK 4.15.0-64 -> OK * 4.15.0-65 -> NG * 4.15.0-66 -> NG * 4.15.0-69 -> NG * 4.15.0-70 -> NG * 4.15.0-72 -> NG * 4.15.0-74 -> NG 4.15.0-76 -> NG 4.15.0-88 -> NG 4.15.0-91 -> NG 4.18.0-15 -> OK -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: kdump kernel can't be loaded using kernel 4.15.0-76 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] Re: kdump kernel can't be loaded using kernel 4.15.0-76
Guilherme,, Thank you for your reply! > Does your system have secureboot enabled? Yes. I confirmed kdump works without secureboot, but we need it. > Also, can you test in a recent kernel, like 4.15.0-91? Yes, I also tried to use 4.15.0-91 and the other. The results: 4.15.0-45 -> OK 4.15.0-64 -> OK 4.15.0-76 -> NG 4.15.0-88 -> NG 4.15.0-91 -> NG 4.18.0-15 -> OK -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: kdump kernel can't be loaded using kernel 4.15.0-76 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] Re: kdump kernel can't be loaded using kernel 4.15.0-76
** Description changed: Thank you for reading this report. This may caused by bugs in kernel, not in kdump. If so, I will report this to kernel team. I need your comment to solve this. [Impact] * Kdump kernel can't be loaded using linux kernel 4.15.0-76. [Environment] Description:Ubuntu 18.04.4 LTS Release:18.04 uname: Linux ubuntu 4.15.0-76-generic #86-Ubuntu SMP Fri Jan 17 17:24:28 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Secure boot is enabled. - Versions: * kexec-tools/bionic-updates,now 1:2.0.16-1ubuntu1.1 * kdump-tools/bionic-updates,now 1:1.6.5-1ubuntu1~18.04.4 [Test case] 1)After OS booted, run systemctl status kdump-tools shows these messages below: ● kdump-tools.service - Kernel crash dump capture service Loaded: loaded (/lib/systemd/system/kdump-tools.service; enabled; vendor preset: enabled) Active: active (exited) since Fri 2020-03-27 16:40:31 JST; 5min ago Process: 895 ExecStart=/etc/init.d/kdump-tools start (code=exited, status=0/SUCCESS) Main PID: 895 (code=exited, status=0/SUCCESS) Mar 27 16:40:31 ubuntu systemd[1]: Starting Kernel crash dump capture service... Mar 27 16:40:31 ubuntu kdump-tools[895]: Starting kdump-tools: * Creating symlink /var/lib/kdump/vmlinuz Mar 27 16:40:31 ubuntu kdump-tools[895]: * Creating symlink /var/lib/kdump/initrd.img Mar 27 16:40:31 ubuntu kdump-tools[895]: kexec_file_load failed: Exec format error Mar 27 16:40:31 ubuntu kdump-tools[895]: * failed to load kdump kernel Mar 27 16:40:31 ubuntu systemd[1]: Started Kernel crash dump capture service. 2)Run kexec directly: $ sudo /sbin/kexec -p --command-line="/boot/vmlinuz-4.15.0-76-generic root=UUID=29a89ad8-8923-435e-a88c-aaf5cb379568 ro mce=ignore_ce reset_devices systemd.unit=kdump-tools-dump.service nr_cpus=1 irqpoll nousb ata_piix.prefer_ms_hyperv=0" --initrd=/boot/initrd.img-4.15.0-76-generic /boot/vmlinuz-4.15.0-64-generic Then,these messages are shown: Cannot open /proc/kcore: Operation not permitted Cannot read /proc/kcore: Operation not permitted Cannot load /boot/vmlinuz-4.15.0-76-generic On dmesg, these messages are shown: [ 538.524718] Lockdown: /proc/kcore is restricted; see man kernel_lockdown.7 3) Changing OS kernel to older one(I used 4.15.0-64), kdump kernel can be loaded. $ sudo systemctl status kdump-tools ● kdump-tools.service - Kernel crash dump capture service Loaded: loaded (/lib/systemd/system/kdump-tools.service; enabled; vendor preset: enabled) Active: active (exited) since Wed 2020-03-25 13:39:03 JST; 5 days ago Main PID: 832 (code=exited, status=0/SUCCESS) Tasks: 0 (limit: 4915) CGroup: /system.slice/kdump-tools.service - Mar 25 13:39:02 ctrl-edgen systemd[1]: Starting Kernel crash dump capture service... - Mar 25 13:39:02 ctrl-edgen kdump-tools[832]: Starting kdump-tools: * Creating symlink /var/lib/kdump/vmlinuz - Mar 25 13:39:02 ctrl-edgen kdump-tools[832]: * Creating symlink /var/lib/kdump/initrd.img - Mar 25 13:39:03 ctrl-edgen kdump-tools[832]: * loaded kdump kernel - Mar 25 13:39:03 ctrl-edgen kdump-tools[938]: loaded kdump kernel - Mar 25 13:39:03 ctrl-edgen systemd[1]: Started Kernel crash dump capture service. + Mar 25 13:39:02 ubuntu systemd[1]: Starting Kernel crash dump capture service... + Mar 25 13:39:02 ubuntu kdump-tools[832]: Starting kdump-tools: * Creating symlink /var/lib/kdump/vmlinuz + Mar 25 13:39:02 ubuntu kdump-tools[832]: * Creating symlink /var/lib/kdump/initrd.img + Mar 25 13:39:03 ubuntu kdump-tools[832]: * loaded kdump kernel + Mar 25 13:39:03 ubuntu kdump-tools[938]: loaded kdump kernel + Mar 25 13:39:03 ubuntu systemd[1]: Started Kernel crash dump capture service. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869672 Title: kdump kernel can't be loaded using kernel 4.15.0-76 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1869672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1869672] [NEW] kdump kernel can't be loaded using kernel 4.15.0-76
Public bug reported: Thank you for reading this report. This may caused by bugs in kernel, not in kdump. If so, I will report this to kernel team. I need your comment to solve this. [Impact] * Kdump kernel can't be loaded using linux kernel 4.15.0-76. [Environment] Description:Ubuntu 18.04.4 LTS Release:18.04 uname: Linux ubuntu 4.15.0-76-generic #86-Ubuntu SMP Fri Jan 17 17:24:28 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Secure boot is enabled. Versions: * kexec-tools/bionic-updates,now 1:2.0.16-1ubuntu1.1 * kdump-tools/bionic-updates,now 1:1.6.5-1ubuntu1~18.04.4 [Test case] 1)After OS booted, run systemctl status kdump-tools shows these messages below: ● kdump-tools.service - Kernel crash dump capture service Loaded: loaded (/lib/systemd/system/kdump-tools.service; enabled; vendor preset: enabled) Active: active (exited) since Fri 2020-03-27 16:40:31 JST; 5min ago Process: 895 ExecStart=/etc/init.d/kdump-tools start (code=exited, status=0/SUCCESS) Main PID: 895 (code=exited, status=0/SUCCESS) Mar 27 16:40:31 ubuntu systemd[1]: Starting Kernel crash dump capture service... Mar 27 16:40:31 ubuntu kdump-tools[895]: Starting kdump-tools: * Creating symlink /var/lib/kdump/vmlinuz Mar 27 16:40:31 ubuntu kdump-tools[895]: * Creating symlink /var/lib/kdump/initrd.img Mar 27 16:40:31 ubuntu kdump-tools[895]: kexec_file_load failed: Exec format error Mar 27 16:40:31 ubuntu kdump-tools[895]: * failed to load kdump kernel Mar 27 16:40:31 ubuntu systemd[1]: Started Kernel crash dump capture service. 2)Run kexec directly: $ sudo /sbin/kexec -p --command-line="/boot/vmlinuz-4.15.0-76-generic root=UUID=29a89ad8-8923-435e-a88c-aaf5cb379568 ro mce=ignore_ce reset_devices systemd.unit=kdump-tools-dump.service nr_cpus=1 irqpoll nousb ata_piix.prefer_ms_hyperv=0" --initrd=/boot/initrd.img-4.15.0-76-generic /boot/vmlinuz-4.15.0-64-generic Then,these messages are shown: Cannot open /proc/kcore: Operation not permitted Cannot read /proc/kcore: Operation not permitted Cannot load /boot/vmlinuz-4.15.0-76-generic On dmesg, these messages are shown: [ 538.524718] Lockdown: /proc/kcore is restricted; see man kernel_lockdown.7 3) Changing OS kernel to older one(I used 4.15.0-64), kdump kernel can be loaded. $ sudo systemctl status kdump-tools ● kdump-tools.service - Kernel crash dump capture service Loaded: loaded (/lib/systemd/system/kdump-tools.service; enabled; vendor preset: enabled) Active: active (exited) since Wed 2020-03-25 13:39:03 JST; 5 days ago Main PID: 832 (code=exited, status=0/SUCCESS) Tasks: 0 (limit: 4915) CGroup: /system.slice/kdump-tools.service Mar 25 13:39:02 ctrl-edgen systemd[1]: Starting Kernel crash dump capture service... Mar 25 13:39:02 ctrl-edgen kdump-tools[832]: Starting kdump-tools: * Creating symlink /var/lib/kdump/vmlinuz Mar 25 13:39:02 ctrl-edgen kdump-tools[832]: * Creating symlink /var/lib/kdump/initrd.img Mar 25 13:39:03 ctrl-edgen kdump-tools[832]: * loaded kdump kernel Mar 25 13:39:03 ctrl-edgen kdump-tools[938]: loaded kdump kernel Mar 25 13:39:03 ctrl-edgen systemd[1]: Started Kernel crash dump capture service. ** Affects: makedumpfile (Ubuntu) Importance: Undecided Status: New ** Description changed: Thank you for reading this report. This may caused by bugs in kernel, not in kdump. If so, I will report this to kernel team. I need your comment to solve this. [Impact] * Kdump kernel can't be loaded using linux kernel 4.15.0-76. [Environment] Description:Ubuntu 18.04.4 LTS Release:18.04 uname: Linux ubuntu 4.15.0-76-generic #86-Ubuntu SMP Fri Jan 17 17:24:28 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Secure boot is enabled. + Versions: + * kexec-tools/bionic-updates,now 1:2.0.16-1ubuntu1.1 + * kdump-tools/bionic-updates,now 1:1.6.5-1ubuntu1~18.04.4 + [Test case] 1)After OS booted, run systemctl status kdump-tools shows these messages below: ● kdump-tools.service - Kernel crash dump capture service -Loaded: loaded (/lib/systemd/system/kdump-tools.service; enabled; vendor preset: enabled) -Active: active (exited) since Fri 2020-03-27 16:40:31 JST; 5min ago - Process: 895 ExecStart=/etc/init.d/kdump-tools start (code=exited, status=0/SUCCESS) - Main PID: 895 (code=exited, status=0/SUCCESS) + Loaded: loaded (/lib/systemd/system/kdump-tools.service; enabled; vendor preset: enabled) + Active: active (exited) since Fri 2020-03-27 16:40:31 JST; 5min ago + Process: 895 ExecStart=/etc/init.d/kdump-tools start (code=exited, status=0/SUCCESS) + Main PID: 895 (code=exited, status=0/SUCCESS) Mar 27 16:40:31 ubuntu systemd[1]: Starting Kernel crash dump capture service... Mar 27 16:40:31 ubuntu kdump-tools[895]: Starting kdump-tools: * Creating symlink /var/lib/kdump/vmlinuz Mar 27 16:40:31 ubuntu kdump-tools[895]: * Creating symlink /var/lib/kdump/initrd.img Mar 27 16:40:31 ubuntu
[Bug 1101636] Re: LICENSE.aic94xx-seq in linux-firmware - is this firmware distributable?
I found the Adaptec license in "copyright" file. I suppose this issue occured again, right? http://changelogs.ubuntu.com/changelogs/pool/main/l/linux-firmware /linux-firmware_1.173.9/copyright I have reported this. https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1844471 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1101636 Title: LICENSE.aic94xx-seq in linux-firmware - is this firmware distributable? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1101636/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1844471] Re: License issue: license prohibits distribution
** Description changed: I found the license of "linux-firmware" prohibits distribution. I want distributable "linux-firmware" because Ubuntu needs this package and I want to distribute Ubuntu. .deb package of "linux-firmware" has "copyright" file in data.tar.xz/usr/share/doc/linux-firmware/ + You can also get the file at + http://changelogs.ubuntu.com/changelogs/pool/main/l/linux-firmware + /linux-firmware_1.173.9/copyright I quote related sentences below: -- 2. Restrictions. This Software contains trade secrets and in order -to protect them you may not: (1) distribute copies of the Software -in any manner, including, but not limited to, distribution through -web site posting; + to protect them you may not: (1) distribute copies of the Software + in any manner, including, but not limited to, distribution through + web site posting; -- "linux-firmware" package is included into Ubuntu installer image(iso) file and distributed. I also found related bug report. - According to the report, the Adaptec's software was removed. + According to the report, the Adaptec's software was removed. https://bugs.launchpad.net/bugs/1101636 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1844471 Title: License issue: license prohibits distribution To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1844471/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1844471] [NEW] License issue: license prohibits distribution
Public bug reported: I found the license of "linux-firmware" prohibits distribution. I want distributable "linux-firmware" because Ubuntu needs this package and I want to distribute Ubuntu. .deb package of "linux-firmware" has "copyright" file in data.tar.xz/usr/share/doc/linux-firmware/ I quote related sentences below: -- 2. Restrictions. This Software contains trade secrets and in order to protect them you may not: (1) distribute copies of the Software in any manner, including, but not limited to, distribution through web site posting; -- "linux-firmware" package is included into Ubuntu installer image(iso) file and distributed. I also found related bug report. According to the report, the Adaptec's software was removed. https://bugs.launchpad.net/bugs/1101636 ** Affects: linux-firmware (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1844471 Title: License issue: license prohibits distribution To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1844471/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1648183] Re: Crackling and popping sound when using headphones
I've managed to fix partially the problem or at least I can narrow it down. So , if I override all my other audio lines via hdajackretask module and only enable the headphone one, the sound is perfect. What happens though when I turn back on the line for the Internal speakers , it goes back to crackling and popping in the internal speakers and headphones. So basically this allows the user to use EITHER internal speakers OR headphones , NOT both. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1648183 Title: Crackling and popping sound when using headphones To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1648183/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
